Upstream information

CVE-2023-3640 at MITRE

Description

A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7 5.5
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Local Local
Attack Complexity High Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High None
Availability Impact High None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1213271 [RESOLVED / WONTFIX]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise Desktop 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise Desktop 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise Desktop 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source-azure Won't fix
SUSE Linux Enterprise Micro 5.1 kernel-default Won't fix
SUSE Linux Enterprise Micro 5.1 kernel-rt Won't fix
SUSE Linux Enterprise Micro 5.1 kernel-source-rt Won't fix
SUSE Linux Enterprise Micro 5.2 kernel-default Won't fix
SUSE Linux Enterprise Micro 5.2 kernel-rt Won't fix
SUSE Linux Enterprise Micro 5.2 kernel-source-rt Won't fix
SUSE Linux Enterprise Micro 5.3 kernel-default Won't fix
SUSE Linux Enterprise Micro 5.3 kernel-rt Won't fix
SUSE Linux Enterprise Micro 5.3 kernel-source-rt Won't fix
SUSE Linux Enterprise Micro 5.4 kernel-default Won't fix
SUSE Linux Enterprise Micro 5.4 kernel-rt Won't fix
SUSE Linux Enterprise Micro 5.4 kernel-source-rt Won't fix
SUSE Linux Enterprise Micro 5.5 kernel-source-rt Won't fix
SUSE Linux Enterprise Micro 6.0 kernel-source Won't fix
SUSE Linux Enterprise Micro 6.0 kernel-source-rt Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-source-azure Won't fix
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Not affected
SUSE Linux Enterprise Real Time 15 SP5 kernel-source-rt Won't fix
SUSE Linux Enterprise Real Time 15 SP6 kernel-source-rt Won't fix
SUSE Linux Enterprise Server 12 SP5 kernel-default Not affected
SUSE Linux Enterprise Server 12 SP5 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source-azure Not affected
SUSE Linux Enterprise Server 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise Server 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP6 kernel-source-azure Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source-azure Won't fix
SUSE Manager Proxy 4.3 kernel-default Analysis
SUSE Manager Proxy 4.3 kernel-source Analysis
SUSE Manager Proxy 4.3 kernel-source-azure Analysis
SUSE Manager Retail Branch Server 4.3 kernel-default Analysis
SUSE Manager Retail Branch Server 4.3 kernel-source Analysis
SUSE Manager Retail Branch Server 4.3 kernel-source-azure Analysis
SUSE Manager Server 4.3 kernel-default Analysis
SUSE Manager Server 4.3 kernel-source Analysis
SUSE Manager Server 4.3 kernel-source-azure Analysis
SUSE Real Time Module 15 SP5 kernel-source-rt Won't fix
SUSE Real Time Module 15 SP6 kernel-source-rt Won't fix
openSUSE Leap 15.5 kernel-default Won't fix
openSUSE Leap 15.5 kernel-source Won't fix
openSUSE Leap 15.5 kernel-source-azure Won't fix
openSUSE Leap 15.5 kernel-source-rt Won't fix
openSUSE Leap 15.6 kernel-default Won't fix
openSUSE Leap 15.6 kernel-source Won't fix
openSUSE Leap 15.6 kernel-source-azure Won't fix
openSUSE Leap 15.6 kernel-source-rt Won't fix
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Desktop 15 SP4 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-default Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-default Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-source Analysis
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-source Analysis
SUSE Linux Enterprise Module for Public Cloud 15 SP4 kernel-source-azure Analysis
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source Not affected
SUSE Linux Enterprise Server 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Server 15 SP4 kernel-source Analysis
SUSE Linux Enterprise Server 15 SP4 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source-azure Analysis
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-source Not affected
SUSE CaaS Platform 4.0 kernel-default Analysis
SUSE CaaS Platform 4.0 kernel-source Analysis
SUSE CaaS Platform Toolchain 3 kernel-source Not affected
SUSE Enterprise Storage 6 kernel-source Not affected
SUSE Enterprise Storage 7 kernel-default Analysis
SUSE Enterprise Storage 7 kernel-source Analysis
SUSE Enterprise Storage 7 kernel-source-azure Analysis
SUSE Enterprise Storage 7.1 kernel-default Won't fix
SUSE Enterprise Storage 7.1 kernel-source Won't fix
SUSE Enterprise Storage 7.1 kernel-source-azure Analysis
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-default Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Not affected
SUSE Linux Enterprise Micro 5.0 kernel-default Not affected
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Module for Public Cloud 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT kernel-source Not affected
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Won't fix
SUSE Linux Enterprise Real Time 15 SP3 kernel-default Analysis
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Analysis
SUSE Linux Enterprise Real Time 15 SP3 kernel-source-rt Analysis
SUSE Linux Enterprise Real Time 15 SP4 kernel-default Analysis
SUSE Linux Enterprise Real Time 15 SP4 kernel-source Analysis
SUSE Linux Enterprise Real Time 15 SP4 kernel-source-rt Analysis
SUSE Linux Enterprise Server 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2-BCL kernel-default Analysis
SUSE Linux Enterprise Server 12 SP2-BCL kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-default Analysis
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-default Analysis
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 15 kernel-source Not affected
SUSE Linux Enterprise Server 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Won't fix
SUSE Linux Enterprise Server 15-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 15-LTSS kernel-source Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-default Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-default Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Analysis
SUSE Manager Proxy 4.0 kernel-source Not affected
SUSE Manager Proxy 4.1 kernel-source Won't fix
SUSE Manager Proxy 4.1 kernel-source-azure Analysis
SUSE Manager Proxy 4.2 kernel-default Analysis
SUSE Manager Proxy 4.2 kernel-source Analysis
SUSE Manager Proxy 4.2 kernel-source-azure Analysis
SUSE Manager Retail Branch Server 4.0 kernel-source Not affected
SUSE Manager Retail Branch Server 4.1 kernel-source Won't fix
SUSE Manager Retail Branch Server 4.1 kernel-source-azure Analysis
SUSE Manager Retail Branch Server 4.2 kernel-default Analysis
SUSE Manager Retail Branch Server 4.2 kernel-source Analysis
SUSE Manager Retail Branch Server 4.2 kernel-source-azure Analysis
SUSE Manager Server 4.0 kernel-source Not affected
SUSE Manager Server 4.1 kernel-source Won't fix
SUSE Manager Server 4.1 kernel-source-azure Analysis
SUSE Manager Server 4.2 kernel-default Analysis
SUSE Manager Server 4.2 kernel-source Analysis
SUSE Manager Server 4.2 kernel-source-azure Analysis
SUSE OpenStack Cloud 7 kernel-source Not affected
SUSE OpenStack Cloud 8 kernel-source Not affected
SUSE OpenStack Cloud 9 kernel-default Not affected
SUSE OpenStack Cloud 9 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-default Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-source Not affected
SUSE Real Time Module 15 SP3 kernel-source-rt Analysis
SUSE Real Time Module 15 SP4 kernel-source-rt Analysis
openSUSE Leap 15.3 kernel-source Won't fix
openSUSE Leap 15.3 kernel-source-azure Won't fix
openSUSE Leap 15.3 kernel-source-rt Won't fix
openSUSE Leap 15.4 kernel-source Won't fix
openSUSE Leap 15.4 kernel-source-azure Won't fix
openSUSE Leap 15.4 kernel-source-rt Won't fix
Products at an unknown state of their lifecycle.
SUSE Linux Enterprise Server 12 SP5-LTSS-EXTENDED-SECURITY kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS-EXTENDED-SECURITY kernel-source-azure Not affected


SUSE Timeline for this CVE

CVE page created: Wed Jul 12 18:04:47 2023
CVE page last modified: Sat Oct 5 00:15:23 2024